Threshing-machine



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(Applicvati'on led June 17, 1897.)

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/N VEA/TOR C W TTOH/V W/TNESSES No. 6|3,9oa. *Patented Nov. a, |898.

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THRESHING MACHINE.

(Appliwrion med June'i?, 1897,.) (N0 Model.) l 3 Sheets-Sheet 3f Tq. E.

A TTOHNE Y W/TNESSES x 'NTTED STATES PATENT OFFICE.

CLEMENT V. NEWTON,v OF CONCORD, INDIANA.

THREsHlNc-MACHlNl-z.

SPECIFICATION forming part of Letters Patent No. 613,908, dated November 8, 1898.

l Application filed .Tune 17, 1897. Serial No. 641,147. (No model.)

To all whom t may concern,.- y

Be it known that I, CLEMENT V. NEWTON, of Concord township, in the county of De Kalb and State of Indiana, have invented a new and Improved Threshing-Machine, of which the following is a full, clear, and exact description.

This invention relates toV threshing machines; and the object is to provide such a machine in which there are very few parts, thus resulting in a very light structure, and, further, to provide a machine that may be operated by much less power than is ordinarily the case.

I will describe a threshing-m achine embodying my invention, and then point out the novel features in the appended claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a section on the line 1 1 of Fig. 2 of a threshing-machine embodying my invention. Fig. 2 is a lplan view thereof. Fig. 3 is a side elevation. Fig. 4is asectional elevation drawn on an enlarged scale and showing a supporting device for the concave. Fig. 5 is a section on the line 5 5 of Fig. 1 and drawn on an enlarged scale, and Fig. 6 is a partial section and partial plan View showing the fans and means for operating the riddles.

The machine comprises a body portion having side walls 1 and the top 2. At the forward end of the body portion is the feed-v chute 3, and inward of this feed-chuteis the threshing-cylinder 4, having the usual teeth 5. This cylinder has its shaft-bearings through the side walls of the body portion, and means for rotating it will be hereinafter described.

The concave below the cylinder 4 comprises plates 6, pivoted at their inner ends to the side walls of the body portion, and these plates are provided with longitudinally-curved slots 7, into which the ends of the bars. 8 extend. These bars 8 have fingers 9 attached to them. I provide means for adjusting the concave relatively to the cylinder 4, and also provide means for allowing the concave to yield automatically with relation to the cylinder 4, so as to allow the passage of large bundles of straw without clogging or danger of breakin gk This means consists of a yoke 10,

the parts.

having upwardly and outwardly yextended arms engaging with the plates 6. The plates 6 are provided with recesses, into which the ends of the arms extend, and between the up'- pervwalls of said recesses and the ends of the arms springs 11 are placed. These springs will allow the outer'ends of the plates to adjust themselves vertically. An adjustingscrew 12 extends through a perforation in a lug at the base of the yoke 10 and engages in a tapped hole in a fixed bracket 13. By operating this screw 12 the concave may be adj usted relatively to the cylinder 4.

Forward of the cylinder 4 are feed-cylinders 14 and 15, each provided with feeding-fingers. These feeding-cylinders have their shaft-bearings through the side walls of the body of the machine, and preferably the lower cylinder 15 will be vertically adjustable with relation to the cylinder 14. I therefore provide bear'- ings for the lower cylinder on vertically-sliding blocks 16,which may be adjusted by screws 17. The cylinders 14 and 15 rotate in the same direction; but the upper cylinder 14 will rotate somewhat faster than the lower cylinder 15, so as to prevent any clogging of straw between the cylinders-that is, as the upper cylinder rotates the faster it will carry a certain amount of straw along, while the lower cylinder will retard a certain portion of it should a bundle be too thick. A plate 18, eX- tended inward from the concave, will direct straw to the feeding-cylinders, and this plate 18 is provided with perforations through which grain may fall.

Arranged below the several cylinders described is a conveyer-frame 19, mounted to slide longitudinally on suitable guides on the side portions of the machine-body. Secured in the conveyer-frame are conveyer-plates 20 and 21, each having series of transverse ribs, and the forward plate 21 is arranged on a lower plane than the plate 20. This arrangement of the plates will prevent an undue accumulation of grain on said plates. The grain is carried forward by the carriers by the quick forward impulse imparted to the carrierframe and carriers. A back-and-for'th mo'- Arranged above the plate 21 are straw-agitating plates 25. These plates extend lengthwise of the machine and are provided with perforations through which grain separated from the straw may fall. The agitator-plates have trunnion-bearings in the side walls 1 of the machine-body, and at their ends they have downwardly-extended fingers 26, pivotally connected to the frame 19. These fingers 26 are at right angles to the width of the plates 25, and it is obvious that when a reciprocating horizontal motion is given to the frame 19 the plates 25 will be slightly rocked in a vertical direction.

From the plate 21 grain will discharge onto a riddle or screen 27, mounted in a horizontally-reciprocating riddle-frame 2S, and from this riddle 27 the grain will fall onto a riddle 29 in a horizontally-reciprocating box 30. Of course any desired number of riddles may be placed in the riddle-boxes. The bottom of the riddle-box 30 inclines downward, so that the grain passing through the riddle 29 onto the said bottom will discharge into a chute 31, from which it will flow into a suitable receptacle.

The riddles will be moved alternately in opposite directions, and as a means thereforI employ a pitman 32, having connection with a crank 33 on the shaft of the fan 34. The other end of the pitman 32 connects with a rock-bar 35, mounted in the riddle-box 30. Links 36 are pivoted at their central point to the sides 1 of the body portion, and theirupper ends are pivotally connected to the riddle-frame 28,while their lower ends are pivotally connected to the riddle-box 30. By this arrangement it is obvious that the riddles will be moved in opposite directions, as indicated by dotted lines in Fig. 1. A fan 34 is mounted in a fan-box 37, open at its ends,

` and the fan consists of several blades arranged at each side of the crank I will now describe means for operating the several parts. On one end of the cylinder 4 is a band-wheel 38, from which a band will extend to a suitable motor. On the opposite end of said shaft is a pulley 39. On the same end of the shaft of the upper feed-cylinder 14 is a pulley 40, and on the end of the shaft of the lower cylinder 15 is a pulley 41, the upper pulley 40 being of smaller diameter than the pulley 41, so that the speed of the upper cylinder will be greater than that of the lower one, as before described. A band 42 connects the several pulleys 30, 40, and 41, and in connection with the band I employ a tightener consisting of a pulley 43, mounted on a block 44, sliding in a guideway45, having a tapped hole in its end, in which a screw 46 engages. This screw at its inner end engages with the block 44, and at its outer end it has a hand-wheel 47. The crank-shaft 23 has a pulley 48, from which a band 49 extends to a pulley 50 on the shaft of the lower feed-cylinder 15, and from a pulley 51 on the shaft of the upper feed-cylinder 14 aband 52 extends to a pulley 53 on the fan-shaft.

In operation the grain will be fed between the cylinder 4 and the concave, Where the grain will be threshed from the straw, and the greater portion of it will fall through the perforations in the plate 18 onto the conveyerplate 20. The straw will then be carried on by the feeding-cylinders and discharged onto the agitating-plates 25, and each succeeding bundle of straw obviously will pass the one before it toward the end of the machine, where it will discharge. In passing over the agitator-plates any grain that may be mingled with the straw will be shaken out of it and discharged onto the conveyer-plate 21, excepting, however, the last two agitators, which are arranged over the riddle 27, will discharge grain directly onto said riddle. The fan of course will blow the chaff from the grain in the riddles, and the grain will fall into the chute or trough 3l.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- In a threshing-machine, the combination with the casing, the threshing-cylinder, and the concave therebelow, of a longitudinallyreciprocating conveyer-frame arranged horizontally Within the casing, a pair of vertically-alined toothed feed-cylinders arranged in rear of the threshing-cylinder, the lower of said feed-cylinders having its fingers or teeth projecting within the conveycr-frame, and a horizontal series of vertically-swinging flat perforated agitator-plates arranged in the rear portion of the casing above the top edge of the conveyer-frame, said agitator-plates being closely grouped together to form a platform lying in substantially the same horizontal plane as the lower of said feed-cylinders, and adapted to receive directly thereon the straw which passes between said cylinders, substantially as set forth.

CLEMENT V. NEWTON.

IVitnesses:

LEWIS S. GosHoRN, CHAS. B. BROWN.

IOO 

